Bill Pet wrote:
this software just is not equipped to handle large music collections. my largest complaint is that you cannot sort by sync'd files...apparently everyone at zune thinks its perfectly ok to do a file by file comparison between the device and software to find the one file that is on the device, that isn't on the software: obviously none of them are using a device larger than 30G or have more than 5000 songs.
some things i noticed:
if your antivirus software or something is updating in the background while you are sync'ing, then you will loose files on the transfer.
if the software is trying to convert in the background, it will also drop files qued for transfer.
i had a much better completion rate transferring wirelessly rather than through the usb 2.0 cable and port.
also had a much better completion rate transferring files 250 at a time, rather than 2.500.
if that isn't bad enough, zune adds insult to injury by putting us into a multi step process to sync the files that failed initially; and zune's "highest level of customer support" was stuck dumbfounded when proposed with the issue that the software could miss as much as 40% of qued files for transfer and no easy way to make them sync. they also do not comprehend how long it takes to resync 80GB of music files and i have the trouble ticket number to prove it!
OK, so I have a couple of info tidbits that might provide a clue... and some ideas.
First- if I can find the thread again, I'll post an update here with the link. There is a file quantity limit on the zune. My recollection is that it's consistent with the stated limits in the specs (so for a 120GB, it would be: "Up to 30,000 songs, 25,000 pictures, ..." I had a discussion with a very good Mod, and we agreed this made no sense, especially as the drives get so big. He has filed a ticket with the developers to get this removed. Note that I'm talking about a quantity of files, not a hard drive space issue. Bill- I raise this since you stated you made a 20,000 song playlist! That suggests you possibly may have an even larger collection...
Update: Found it...
http://forums.zune.net/387008/ShowPost.aspx
Second- Now that we have autoplaylists, the software 'refreshes' those periodically. I don't know all the triggers for a refresh, but I have observed at least two.. 1) Sync'ing, 2) playing them on the PC. So, I think your observation of 'updating songs' during sync may quite possibly be the software choking on refreshing this extremely large 20K song playlist. (To refresh an autoplaylist, the software checks the logic whatever that may be, and converts it to a static playlist, then syncs that to the device. During a sync, it could be re-writing the entire playlist to the device, or perhaps scanning it to add/delete the refresh 'changes.' I.e., autoplaylists are only 'auto' on the PC, and get updated on the device at every sync. Cut this 20K playlist down to many much smaller ones if possible. I have no idea what size is optimal though, so you will have to experiment. (And, presumably something similar happens with 'regular' static playlists...the software has to refresh those onto the device if/when you update them on the PC.)
Third- What is your sync mode? You can use a playlist to force a song to sync if you are in anything but smart-sync -all mode, which appears to be your case. Are you using manual sync, or smart-sync- let me choose mode? You may want to experiment here, and use let me choose, with many small sync groups, vs. one or two very large sync groups. I can imagine the same sort of refresh behavior as autoplaylists occuring here, too, as the software checks and refreshes the sync groups during a sync. (Sync Groups and Playlists may even be the same thing, using two different names...) Examples of 'small' sync groups would be an artist (or an album, or a group of songs...but those would seem painful to manage/create for such a large collection.)
Fourth: Ref: background conversion. It will happen only once (per file) and then be done. If for videos, you have to live with it, or choose not to have those videos on your zune. If for music, you can change your settings not to convert (the purpose is to limit the file sizes by down-converting from higher to lower bitrates...less music fidelity, but smaller files.)